Double-scissor-fork type lifting mechanism

Abstract

The utility model relates to a double-scissor type lifting mechanism in the technical field of ice melting lifting equipment, which comprises a scissor lifting platform, the scissor lifting platform is arranged on bases, the bases are symmetrically arranged, the bases are connected through a mounting frame, a plurality of moving wheels are arranged on the bases, and the plurality of moving wheels are connected with a retractable structure. The two shear fork lifting tables support the two ice melting devices respectively, the two ice melting devices work on the power transmission lines at different heights, efficiency is improved, the multiple moving wheels arranged on the two bases can conveniently convey the whole device to the position below the line needing ice melting, before the ice melting devices are lifted, the moving wheels are folded through the folding and unfolding structure, and the ice melting efficiency is improved. And the moving wheels are prevented from shaking in the lifting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to ice melting lifting equipment technical field especially relates to a double scissor lifting mechanism. BACKGROUND

[0002] Winter icing of transmission line is one of the major natural disasters of power system, and the consequences of power interruption and even grid splitting caused by icing are usually extremely serious, and the repair work is difficult and long. In order to improve the resistance of power grid to extreme climate and major natural disasters, various deicing technologies have emerged, and for high transmission lines, ice melting device needs to cooperate with lifting mechanism to carry out ice melting work. For example, Chinese patent CN215452467U discloses a track type combined mobile ice melting device. When ice melting operation is needed, first arrange the mobile DC pipe bus vehicle to the line interval position needing ice melting, then drive the track type engineering vehicle to the specified position, open the hydraulic support leg, then make the hydraulic scissor lifting platform rise to the specified height through the hydraulic control terminal and height indicator, and then carry out ice melting operation. However, the lifting platform is single scissor type, and there are transmission lines of different heights on the actual transmission line tower. The lifting height of the lifting platform needs to be changed constantly during ice melting, which reduces the ice melting efficiency to a certain extent.

[0003] Therefore, in view of the above problems, a double scissor lifting mechanism is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, a double scissor lifting mechanism is developed. The utility model can simultaneously lift two ice melting devices to different height transmission lines for ice melting.

[0005] The technical scheme for solving the technical problem of the utility model is a double scissor lifting mechanism, which comprises a scissor lifting platform. The scissor lifting platform is arranged on the base. The base is symmetrically arranged. The base is connected through the mounting frame. A plurality of moving wheels are arranged on the base. The plurality of moving wheels are connected with the folding structure.

[0006] The two scissor lifting platforms support two ice melting devices respectively. The two ice melting devices work on transmission lines of different heights, improving the efficiency. The plurality of moving wheels arranged on the two bases facilitate the transportation of the whole device below the line needing ice melting. Before lifting the ice melting device, the moving wheels are folded through the folding structure to prevent shaking of the moving wheels during lifting.

[0007] Preferably, a supporting table is arranged below the base. Two supporting shafts are arranged on the two sides of the supporting table respectively. The supporting shafts are rotatably connected with the supporting legs. The moving wheels are arranged on the lower part of the supporting legs. The supporting legs are connected with the folding structure.

[0008] The rotation connection between the supporting shaft and the supporting leg enables the moving wheel to be retracted through the rotation of the supporting leg.

[0009] The retractable structure comprises a connecting plate, which is arranged outside the supporting table.

[0010] The connecting plate drives the moving rod to move through the moving slot during the up-and-down movement of the connecting plate.

[0011] The supporting table has a cavity inside, and a plurality of limiting slots are vertically arranged on the outer wall of the supporting table.

[0012] The plurality of limiting rods are arranged in the plurality of limiting slots respectively, so that the limiting rods can move up and down, thereby preventing the connecting plate from deviating.

[0013] The driving part comprises a connecting table, which is arranged below the mounting frame.

[0014] The hydraulic push rod drives the connecting table to move up and down, thereby driving the connecting plate to move up and down, so as to realize the retracting and extending of the moving wheel.

[0015] The supporting table is provided with a ring-shaped supporting plate, which is arranged below the cavity.

[0016] The supporting table is provided with a ring-shaped supporting plate, which is arranged below the cavity.

[0017] The base is provided with a traction hook, and the symmetrically arranged bases are connected to the towing vehicle through the traction hook.

[0018] The towing vehicle drives the mechanism as a whole to move through the traction hook, thereby facilitating transportation.

[0019] The effects provided in the content of the utility model are only the effects of the embodiments, not all the effects of the utility model.

[0020] Two scissor lifts support two de-icing devices, which then operate on elevated power lines, improving efficiency. Multiple casters on the two bases facilitate transporting the entire equipment to the area below the lines requiring de-icing. Before lifting the de-icing devices, the casters are retracted via a mechanism to prevent swaying during the lifting process.

[0021] Multiple limiting rods are respectively inserted into multiple limiting grooves to keep the limiting rods moving up and down, thereby preventing the connecting plate from shifting. The limiting rods are directly reinforced by the reinforcing plate to improve the structural strength and reduce the deformation of the limiting rods. During the up and down movement of the connecting plate, the moving rod is driven to move through the moving groove. As the moving rod moves along the moving groove, it drives the support leg to rotate, realizing the extension and retraction of the moving wheel. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0025] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0026] Figure 4 Appendix to this utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0027] Figure 5 Appendix to this utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0028] In the diagram, 1. Scissor lift platform; 2. Base; 3. Mounting frame; 4. Casters; 5. Support platform; 6. Support shaft; 7. Outrigger; 8. Connecting plate; 9. Moving slot; 10. Moving rod; 11. Cavity; 12. Limiting slot; 13. Limiting rod; 14. Reinforcing plate; 15. Connecting platform; 16. Hydraulic push rod; 17. Support plate; 18. Reinforcing rib; 19. Traction hook. Detailed Implementation

[0029] For the purpose of clearly illustrating the technical features of the present application, the present application will be described in detail below with specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples to implement the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present application omits the description of known components and processing techniques and processes to avoid unnecessary limitation of the present application. The orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as limiting or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be a fixed connection, or it can be a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] As shown in Figures 1 to 5 A double scissor lifting mechanism, comprising a scissor lifting platform 1, the scissor lifting platform 1 is arranged on the base 2, the base 2 is symmetrically arranged, the base 2 is connected through the mounting frame 3, a plurality of moving wheels 4 are arranged on the base 2, and the plurality of moving wheels 4 are connected with the folding structure. Two scissor lifting platforms 1 support two ice melting devices respectively, and the two ice melting devices work on different high power transmission lines to improve efficiency. The plurality of moving wheels 4 arranged on the two bases 2 facilitate the overall transportation of the equipment below the line where ice melting is required. Before lifting the ice melting device, the moving wheels 4 are retracted through the folding structure to prevent the moving wheels 4 from shaking during lifting.

[0031] A support table 5 is arranged below the base 2, two support shafts 6 are arranged on the two sides of the support table 5 respectively, the support shafts 6 are rotatably connected with the supporting legs 7, the moving wheels 4 are arranged at the lower part of the supporting legs 7, and the supporting legs 7 are connected with the folding structure. The supporting legs 7 and the support shafts 6 are rotatably connected, and the moving wheels 4 are retracted through the rotation of the supporting legs 7.

[0032] The folding and unfolding structure comprises a connecting plate 8 arranged outside the support table 5, the connecting plate 8 is symmetrically provided with a moving groove 9, a moving rod 10 is arranged in the moving groove 9 in a matched mode, and the moving rod 10 is connected with the supporting leg 7. The connecting plate 8 drives the moving rod 10 to move through the moving groove 9 in the process of moving up and down, the moving rod 10 drives the supporting leg 7 to rotate in the process of moving along the moving groove 9, and the folding and unfolding of the moving wheel 4 is realized.

[0033] The inside of the support table 5 is a cavity 11, a plurality of limiting grooves 12 are vertically arranged on the outer wall of the support table 5, limiting rods 13 are arranged in the limiting grooves 12 in a penetrating mode, the limiting rods 13 are connected with the plurality of connecting plates 8, the limiting rods 13 are connected with each other through a reinforcing plate 14, the reinforcing plate 14 is located in the cavity 11, and the plurality of limiting rods 13 are connected with a driving part. The plurality of limiting rods 13 are arranged in the plurality of limiting grooves 12 in a penetrating mode, the limiting rods 13 are kept moving up and down, the connecting plate 8 is prevented from deviating, the limiting rods 13 directly pass through the reinforcing plate 14 to improve the structural strength and reduce the deformation of the limiting rods 13.

[0034] The driving part comprises a connecting table 15 located below the mounting frame 3, the connecting table 15 is connected with the plurality of limiting rods 13, the connecting table 15 is connected with the output end of a hydraulic push rod 16, and the hydraulic push rod 16 is arranged on the mounting frame 3. The hydraulic push rod 16 drives the connecting table 15 to move up and down, the connecting plate 8 is driven to move up and down, and the folding and unfolding of the moving wheel 4 is realized.

[0035] The support table 5 is provided with a ring-shaped supporting plate 17 located below the cavity 11, and the supporting plate 17 is connected with the inner wall of the support table 5 through a plurality of reinforcing ribs 18. The support table 5 is provided with the ring-shaped supporting plate 17 to increase the contact area with the ground and improve the stability in the lifting process.

[0036] A traction hook 19 is arranged on the base 2, and the symmetrically arranged base 2 is connected with a traction vehicle through the traction hook 19. The traction vehicle drives the mechanism as a whole to move through the traction hook 19, and transportation is facilitated.

[0037] Working principle: the mechanism is moved to a position where ice melting is required through the traction vehicle, the hydraulic push rod 16 is started, the connecting table 15 is moved upward, the connecting plate 8 is driven to move upward, the connecting plate 8 drives the moving rod 10 to move through the moving groove 9 in the process of moving upward, the moving rod 10 drives the supporting leg 7 to rotate in the process of moving along the moving groove 9, the moving wheel 4 is recovered, the support table 5 and the supporting plate 17 are in contact with the ground for support after the moving wheel 4 is recovered, the two ice melting devices are respectively placed on the two scissor lifting tables 1, and the two scissor lifting tables 1 are respectively started to make the two ice melting devices respectively reach the working height for ice melting.

[0038] The utility model has been described in combination with the drawings above, but is not limited to the protection scope of the utility model, and various modifications or changes made by those skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A double scissor lifting mechanism comprising a scissor lift table (1), characterized in that: The scissors lifting platform (1) is arranged on the base (2), the base (2) is symmetrically arranged, the base (2) is connected through the mounting frame (3), a plurality of moving wheels (4) are arranged on the base (2), and the plurality of moving wheels (4) are connected with the folding structure.

2. A dual scissor lifting mechanism according to claim 1, characterized in that: The support table (5) is arranged below the base (2), two support shafts (6) are arranged on the two sides of the support table (5) respectively, the support shaft (6) is rotatably connected with the support leg (7), the moving wheel (4) is arranged on the lower part of the support leg (7), and the support leg (7) is connected with the folding structure.

3. A dual scissor lifting mechanism according to claim 2, wherein: The folding structure comprises a connecting plate (8), the connecting plate (8) is arranged outside the support table (5), the connecting plate (8) is symmetrically arranged with a moving groove (9), the moving groove (9) is matched with a moving rod (10) arranged inside, the moving rod (10) is connected with the support leg (7).

4. A dual scissor lifting mechanism as claimed in claim 3, characterized in that: The inside of the support table (5) is a cavity (11), a plurality of limiting grooves (12) are vertically arranged on the outer wall of the support table (5), a limiting rod (13) is arranged in the limiting groove (12), the limiting rod (13) is connected with a plurality of connecting plates (8), the limiting rods (13) are connected through the reinforcing plate (14), the reinforcing plate (14) is located in the cavity (11), and the plurality of limiting rods (13) are connected with the driving part.

5. A double scissor lift mechanism according to claim 4, wherein: The driving part comprises a connecting table (15), the connecting table (15) is located below the mounting frame (3), the connecting table (15) is connected with the plurality of limiting rods (13), the connecting table (15) is connected with the output end of the hydraulic push rod (16), and the hydraulic push rod (16) is arranged on the mounting frame (3).

6. A dual scissor lifting mechanism as claimed in claim 4, characterized in that: The support table (5) is provided with an annular support plate (17), the support plate (17) is located below the cavity (11), and the support plate (17) is connected with the inner wall of the support table (5) through a plurality of reinforcing ribs (18).

7. The dual-truss lifting mechanism of claim 1, wherein: The base (2) is provided with a traction hook (19), and the symmetrically arranged base (2) is connected with the traction vehicle through the traction hook (19).

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